1. any of numerous long, slender, soft-bodied, legless, bilaterally symmetrical invertebrates, including the flatworms, roundworms, acanthocephalans, nemerteans, gordiaceans, and annelids.
2. (loosely) any of numerous small creeping animals with more or less slender, elongated bodies, and without limbs or with very short ones, including individuals of widely differing kinds, as earthworms, tapeworms, insect larvae, and adult forms of some insects.
3. something resembling or suggesting a worm in appearance, movement, etc.
4. a groveling, abject, or contemptible person.
5. the spiral pipe in which the vapor is condensed in a still.
6. (not in technical use) screw thread (def. 1).
7. screw conveyor.
8. a rotating cylinder or shaft, cut with one or more helical threads, that engages with and drives a worm wheel.
9. something that penetrates, injures, or consumes slowly or insidiously, like a gnawing worm.
10. any disease or disorder arising from the presence of parasitic worms in the intestines or other tissues; helminthiasis.
11. irregularities visible on the surfaces of some metals subject to plastic deformation.
12. the lytta of a dog or other carnivorous animal.
13. computer code planted illegally in a software program so as to destroy data in any system that downloads the program, as by reformatting the hard disk.

14. to move or act like a worm; creep, crawl, or advance slowly or stealthily.
15. to achieve something by insidious procedure (usually followed by into): to worm into another's favor.
16. craze (def. 8a).

17. to cause to move or advance in a devious or stealthy manner: The thief wormed his hand into my coat pocket.
18. to get by persistent, insidious efforts (usually followed by out or from): to worm a secret out of a person.
19. to insinuate (oneself or one's way) into another's favor, confidence, etc.: to worm his way into the king's favor.
20. to free from worms: He wormed the puppies.
21. to wind yarn or the like spirally round (a rope) so as to fill the spaces between the strands and render the surface smooth.

1. any of various invertebrates, esp the annelids (earthworms, etc), nematodes (roundworms), and flatworms, having a slender elongated body
2. any of various insect larvae having an elongated body, such as the silkworm and wireworm
3. any of various unrelated animals that resemble annelids, nematodes, etc, such as the glow-worm and shipworm
4. a gnawing or insinuating force or agent that torments or slowly eats away
5. a wretched or spineless person
6. anything that resembles a worm in appearance or movement
7. a shaft on which a helical groove has been cut, as in a gear arrangement in which such a shaft meshes with a toothed wheel
8. a spiral pipe cooled by air or flowing water, used as a condenser in a still
9. a nontechnical name for lytta
10. any wormlike organ, structure, or part, such as the middle lobe of the cerebellum (vermis cerebelli)
11. a program that duplicates itself many times in a network and prevents its destruction. It often carries a logic bomb or virus

12. to move, act, or cause to move or act with the slow sinuous movement of a worm
13. to make (one's way) slowly and stealthily; insinuate (oneself)
14. to extract (information, a secret, etc) from by persistent questioning
15. to free from or purge of worms
16. to wind yarn around (a rope) so as to fill the spaces between the strands and render the surface smooth for parcelling and serving

1. write once read many times: an optical disk that enables users to store data but not change it

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